More than two years ago, ISIL forces overran the largest city in northern Iraq, Mosul. The city's speed and the ferocity of victory has shocked the world. It was here that ISIL leader announced the formation of his caliphate. Today, the city is an active combat zone, as Iraqi forces fight to take the city back, street by street, in fierce urban warfare.

101 East travels to the front line, recording the experiences of the soldiers fighting to liberate their home towns, and the civilians caught in the crossfire.